Approximately 54 x 5/32 inch Case Hardened Ball Bearings and TF2 Lithium Grease

Cycle Bearings With Grease: Practical service pack containing a tube of white lithium TF2 grease and loose ball bearings. Contains high quality British made case hardened replacement bicycle bearings that are quality tested and approved to grade 1000 performance. The lithium grease offers excellent lubricity and exceptional water resistance.
Benefits: Case hardened bearings, long life cycle, quality grease, ideal for use in cycle headsets and cranks.

Brand / Quality:

Weldtite - High Quality

Outside Diameter:

Approx. 3.97mm = 0.156 (5/32) inch